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Don't coredump on "X -showopts" (bug 25874)

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Don't try walking the xf86ConfigLayout.screens table if it's empty
https://bugs.freedesktop.org/show_bug.cgi?id=25874

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Alan Coopersmith 2010-06-12 08:19:16 -07:00 committed by Keith Packard
parent 32fd57509c
commit b8615d5927
1 changed files with 7 additions and 0 deletions
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7
hw/xfree86/common/xf86Helper.c
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@ -1440,6 +1440,13 @@ xf86MatchDevice(const char *drivername, GDevPtr **sectlist)
if (sectlist)
*sectlist = NULL;
/*
* This can happen when running Xorg -showopts and a module like ati
* or vmware tries to load its submodules when xf86ConfigLayout is empty
*/
if (!xf86ConfigLayout.screens)
return 0;
/*
* This is a very important function that matches the device sections
* as they show up in the config file with the drivers that the server